Image Processing Commands
Image processing commands are used to modify scanned data before
sending it to the computer. Two commands are available: halftone
processing and color correction.
1. Set halftoning mode (ESC B)
This com m and enables or disables halftone processing for
bi-level data and quad-level data. The type of processing
perform ed is outlined below . H ow ever, the type of processing
available differs by scanner m odel. See A ppendix B for details.
This com m and also enables or disables Text Enhancem ent
Technology. This function is only available for B5 or A 5
com m and level scanners or higher.
❏
No data processing
Unprocessed data is sent directly to the computer. Use this setting
when scanning characters or line art that needs no processing.
❏
Halftoning mode A
Produces hard tones using the Error Diffusion method, producing
images with higher contrast. This is appropriate for most images.
❏
Halftoning mode B
Produces soft tones using the Error Diffusion method. This
method produces a softer image than halftoning
mode A.
❏
Halftoning mode C
Produces an image using a screen, again using the Error Diffusion
method.
❏
Dither mode A
Processes data using a 4
×
4 bayer pattern
Command Usage
2-13
Содержание EMP-TW 1000
Страница 4: ...iv ...
Страница 11: ...Introduction Introduction 1 ...
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Страница 36: ...Halftone mode C None Dither mode A Dither mode B Dither mode C Dither mode D 1 22 Overview ...
Страница 39: ...Chapter 2 Command Usage 2 Command Usage 2 1 ...
Страница 72: ...Color page scanning Use when sending color page data 2 34 Command Usage ...
Страница 95: ...Chapter 3 Command Reference 3 Command Reference 3 1 ...
Страница 118: ... Upper bits beginning with the MSB are valid Lower bits not in use are fixed to 0 3 24 Command Reference ...
Страница 131: ...Parameter range Default value i 00H center Command Reference 3 37 ...
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Страница 163: ...Appendix A Interface Specifications A Interface Specifications A 1 ...
Страница 182: ...A 20 Interface Specifications ...
Страница 183: ...Appendix B Scanner Model Technical Data B Scanner Model Technical Data B 1 ...
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